Chief Medical Officer Professor Nicole Spurrier said the state currently had 588 total infections, 15 of which were active and in medi-hotels, with more than 4500 tests done in the last 24 hours.
Professor Spurrier said there were four cases of the highly infectious UK strain of the virus in South Australia.
Two people have been cleared of the infection while two remain in a medi-hotel.
“We are very concerned about this particular variant of the virus,” Professor Spurrier said.
South Australia will make no changes to its border restrictions to Queensland and New South Wales, but Professor Spurrier said she hoped border closures would ease as soon as possible.
“We are keen to have border arrangement lifted and will get more information from the AHPPC tomorrow.”